420131504 has 40 divisors (see below), whose sum is σ = 877860480. Its totient is φ = 193632768.

The previous prime is 420131483. The next prime is 420131519. The reversal of 420131504 is 405131024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267329 + ... + 268895.

It is an arithmetic number, because the mean of its divisors is an integer number (21946512).

Almost surely, 2^420131504 is an apocalyptic number.

It is an amenable number.

420131504 is an abundant number, since it is smaller than the sum of its proper divisors (457728976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420131504 is a wasteful number, since it uses less digits than its factorization.

420131504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877 (or 2871 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 420131504 is about 20497.1096498994. The cubic root of 420131504 is about 748.9653906194.

Subtracting from 420131504 its product of nonzero digits (480), we obtain a palindrome (420131024).

Adding to 420131504 its reverse (405131024), we get a palindrome (825262528).

The spelling of 420131504 in words is "four hundred twenty million, one hundred thirty-one thousand, five hundred four".